( There is some gore content in a few paragraphs below, so read it with caution. But considering it's a detective novel, so yeah, be prepared.)
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Nancy lived at home with her parents. Her father, a former factory worker with a disability pension for a job-related injury, operated a small mail-order business from his home. Her mother helped him with the business and also served as a part-time bookkeeper for several neighborhood enterprises. Neither Nancy nor either of her parents had any demonstrable connection to the drug subculture.